Re: [PATCH v8 11/12] zram: fix crashes with cpu hotplug multistate

On Tue, Oct 19, 2021 at 06:25:18PM +0200, Greg KH wrote:

On Tue, Oct 19, 2021 at 08:50:24AM -0700, Luis Chamberlain wrote:

quoted

So do you want to take the position:

Hey driver authors: you cannot use any shared lock on module removal and
on sysfs ops?

Yes, I would not recommend using such a lock at all.  sysfs operations
happen on a per-device basis, so you can lock the device structure.

All devices are going to be removed on module removal and so cannot be locked.

  Luis